Calculate the overall loss coefficient for a flat-plate solar collector located in Madison and sloped toward the equator with a slope equal to the latitude. Assume a single glass cover 25 mm above the absorber plate, a wind speed of 6.5 m/s, an absorber long-wave emittance of 0.11, and 70 mm of rock wool back insulation having a conductivity of 0.034 W/m C. The mean plate temperature is 100C, and the ambient temperature is 25C. Neglect edge effects and absorption of solar radiation by the glass. The collectors are mounted flush on the surface of a house having a volume of 300 m. The time is noon and Tdp = 20C.